A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
Did some testing with Repper Pro tonight, and this gray mid-tone pattern came out.
Source Atle Mo
Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Triangular Background Design Mark II 5
Source GDJ
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
Prismatic Geometric Pattern Background 2 No Black
Source GDJ
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
I scanned a paper coffee cup. You know, in case you need it.
Source Atle Mo
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
A seamless pattern based on a rectangular tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
A seamless paper background texture colored in pale yellow. This seamless texture is ideal for those who need a yellow background image for their website. The texture resembles paper.
Source V. Hartikainen
A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
Background Wall, Art Abstract, Watercolor Vintage style CC0 texture.
Source Ractapopulous
Found on the ground in french cafe in kunming, Yunnan, china
Source Rejon
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo